Hidden blood loss is a significant portion of total blood loss after hip hemiarthroplasty and is associated with female sex, higher ASA class, GI bleeding/ulcer, general anesthesia, and transfusion.
Identifies high-risk hip hemiarthroplasty patients for hidden blood loss monitoring; hypothesis-generating for prospective risk-factor validation.
HBL should not be ignored in patients who underwent hip hemiarthroplasty for displaced femoral neck fractures in the perioperative period, because it is a significant portion of TBL. Female patients, patients with higher ASA classification and perioperative gastrointestinal bleeding/ulcer, patients who were administered general anesthesia, or patients who underwent transfusion had a greater amount of HBL after hip hemiarthroplasty was performed. Having a correct understanding of HBL may help surgeons improve clinical assessment capabilities and ensure patients' safety.
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Guo et al. (2018) studied this question.
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